html,
body {
  padding: 0;
  margin: 0;
}
html {
  width: 100%;
  height: 100%;

  box-sizing: border-box;
}
body {
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

body {
  overflow: hidden;

  font-family: Arial, sans-serif;
}

iframe {
  width: 100%;
  height: 100%;

  border: 0;
}
